"""Support for Lutron lights.""" import logging from homeassistant.components.light import ( ATTR_BRIGHTNESS, DOMAIN, SUPPORT_BRIGHTNESS, Light) from homeassistant.components.lutron import ( LutronDevice, LUTRON_DEVICES, LUTRON_GROUPS, LUTRON_CONTROLLER) DEPENDENCIES = ['lutron'] _LOGGER = logging.getLogger(__name__) # pylint: disable=unused-argument def setup_platform(hass, config, add_devices, discovery_info=None): """Setup Lutron lights.""" area_devs = {} devs = [] for (area_name, device) in hass.data[LUTRON_DEVICES]['light']: dev = LutronLight(hass, area_name, device, hass.data[LUTRON_CONTROLLER]) area_devs.setdefault(area_name, []).append(dev) devs.append(dev) add_devices(devs, True) for area in area_devs: if area not in hass.data[LUTRON_GROUPS]: continue grp = hass.data[LUTRON_GROUPS][area] ids = list(grp.tracking) + [dev.entity_id for dev in area_devs[area]] grp.update_tracked_entity_ids(ids) return True def to_lutron_level(level): """Convert the given HASS light level (0-255) to Lutron (0.0-100.0).""" return float((level * 100) / 255) def to_hass_level(level): """Convert the given Lutron (0.0-100.0) light level to HASS (0-255).""" return int((level * 255) / 100) class LutronLight(LutronDevice, Light): """Representation of a Lutron Light, including dimmable.""" def __init__(self, hass, area_name, lutron_device, controller): """Initialize the light.""" self._prev_brightness = None LutronDevice.__init__(self, hass, DOMAIN, area_name, lutron_device, controller) @property def supported_features(self): """Flag supported features.""" return SUPPORT_BRIGHTNESS @property def brightness(self): """Return the brightness of the light.""" new_brightness = to_hass_level(self._lutron_device.last_level()) if new_brightness != 0: self._prev_brightness = new_brightness return new_brightness def turn_on(self, **kwargs): """Turn the light on.""" if ATTR_BRIGHTNESS in kwargs and self._lutron_device.is_dimmable: brightness = kwargs[ATTR_BRIGHTNESS] elif self._prev_brightness == 0: brightness = 255 / 2 else: brightness = self._prev_brightness self._prev_brightness = brightness self._lutron_device.level = to_lutron_level(brightness) def turn_off(self, **kwargs): """Turn the light off.""" self._lutron_device.level = 0 @property def device_state_attributes(self): """Return the state attributes.""" attr = {} attr['Lutron Integration ID'] = self._lutron_device.id return attr @property def is_on(self): """Return true if device is on.""" return self._lutron_device.last_level() > 0 def update(self): """Called when forcing a refresh of the device.""" if self._prev_brightness is None: self._prev_brightness = to_hass_level(self._lutron_device.level)